Create an empty UIView: UIView *v = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 70)];
Create your button:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button setTitle:@"Load More" forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonLoadMoreTouched) forControlEvents:UIControlEventTouchUpInside];
[button sizeToFit];
Add you button as a subview of the view from 1.
[v addSubview:button];
Stel de tabel tableFooterView
van de tabel in op de weergave vanaf 1.
self.myTableView.tableFooterView = v;